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mtd-utils: Tweak LZO patches 

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@2145 311d38ba-8fff-0310-9ca6-ca027cbcb966
This commit is contained in:
Richard Purdie 2007-07-10 14:52:07 +00:00
parent b15ec7a7ff
commit df6134d575
2 changed files with 25 additions and 19 deletions
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6
meta/packages/mtd/mtd-utils/add_lzo.patch
View File

@ -1,3 +1,5 @@
Subject: [mtd-utils patch 1/2] Add lzo support to mtd-utils
Add LZO support to mtd-utils to generate LZO compressed jffs2 images
Unlike the kernel version, the standard lzo userspace library is used
@ -39,7 +41,7 @@ Index: git/compr.c
jffs2_rtime_init();
#endif
+#ifdef CONFIG_JFFS2_LZO
+ jffs2_lzo_init();
+ jffs2_lzo_init();
+#endif
return 0;
}
@ -49,7 +51,7 @@ Index: git/compr.c
jffs2_zlib_exit();
#endif
+#ifdef CONFIG_JFFS2_LZO
+ jffs2_lzo_exit();
+ jffs2_lzo_exit();
+#endif
return 0;
}

38
meta/packages/mtd/mtd-utils/favour_lzo.patch
View File

@ -1,3 +1,5 @@
Subject: [mtd-utils patch 2/2] Add favourlzo compression mode
Add a favourlzo compression mode to mtd-utils
This allows lzo compression to be used in the cases where the
@ -35,21 +37,21 @@ Index: git/compr.c
+ struct jffs2_compressor *best, uint32_t size, uint32_t bestsize)
+{
+ switch (jffs2_compression_mode) {
+ case JFFS2_COMPR_MODE_SIZE:
+ if (bestsize > size)
+ return 1;
+ return 0;
+ case JFFS2_COMPR_MODE_FAVOURLZO:
+ if ((this->compr == JFFS2_COMPR_LZO) && (bestsize > size))
+ return 1;
+ if ((best->compr != JFFS2_COMPR_LZO) && (bestsize > size))
+ return 1;
+ if ((this->compr == JFFS2_COMPR_LZO) && (bestsize > (size * FAVOUR_LZO_PERCENT / 100)))
+ return 1;
+ if ((bestsize * FAVOUR_LZO_PERCENT / 100) > size)
+ return 1;
+ case JFFS2_COMPR_MODE_SIZE:
+ if (bestsize > size)
+ return 1;
+ return 0;
+ case JFFS2_COMPR_MODE_FAVOURLZO:
+ if ((this->compr == JFFS2_COMPR_LZO) && (bestsize > size))
+ return 1;
+ if ((best->compr != JFFS2_COMPR_LZO) && (bestsize > size))
+ return 1;
+ if ((this->compr == JFFS2_COMPR_LZO) && (bestsize > (size * FAVOUR_LZO_PERCENT / 100)))
+ return 1;
+ if ((bestsize * FAVOUR_LZO_PERCENT / 100) > size)
+ return 1;
+
+ return 0;
+ return 0;
+ }
+ /* Shouldn't happen */
+ return 0;
@ -70,9 +72,9 @@ Index: git/compr.c
+ uint32_t needed_buf_size;
+
+ if (jffs2_compression_mode == JFFS2_COMPR_MODE_FAVOURLZO)
+ needed_buf_size = orig_slen+jffs2_compression_check;
+ needed_buf_size = orig_slen + jffs2_compression_check;
+ else
+ needed_buf_size = orig_dlen+jffs2_compression_check;
+ needed_buf_size = orig_dlen + jffs2_compression_check;
+
/* Skip decompress-only backwards-compatibility and disabled modules */
if ((!this->compress)||(this->disabled))
@ -105,7 +107,7 @@ Index: git/compr.c
act_buf += sprintf(act_buf,"size");
break;
+ case JFFS2_COMPR_MODE_FAVOURLZO:
+ act_buf += sprintf(act_buf,"favourlzo");
+ act_buf += sprintf(act_buf, "favourlzo");
+ break;
default:
act_buf += sprintf(act_buf,"unkown");
@ -134,3 +136,5 @@ Index: git/compr.h
#define kmalloc(a,b) malloc(a)
#define kfree(a) free(a)